186 lines
7.3 KiB
Makefile
186 lines
7.3 KiB
Makefile
variant_list := $(filter AUX-%,$(MAKECMDGOALS))
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ifdef variant_list
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AUX_OS_VARIANT_LIST := $(patsubst AUX-%,%,$(variant_list))
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else
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AUX_OS_VARIANT_LIST := $(TARGET_AUX_OS_VARIANT_LIST)
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endif
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# exclude AUX targets from build
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ifeq ($(AUX_OS_VARIANT_LIST),none)
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AUX_OS_VARIANT_LIST :=
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endif
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# temporary workaround to support external toolchain
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ifeq ($(NANOHUB_TOOLCHAIN),)
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AUX_OS_VARIANT_LIST :=
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endif
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# setup toolchain paths for various CPU architectures
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# this one will come from android prebuilts eventually
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AUX_TOOLCHAIN_cortexm4 := $(NANOHUB_TOOLCHAIN)
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ifeq ($(wildcard $(AUX_TOOLCHAIN_cortexm4)gcc),)
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AUX_TOOLCHAIN_cortexm4:=
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endif
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# there is no MAKE var that defines path to HOST toolchain
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# all the interesting paths are hardcoded in soong, and are not available from here
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# There is no other way but to hardcode them again, as we may need host x86 toolcain for AUX
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ifeq ($(HOST_OS),linux)
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AUX_TOOLCHAIN_x86 := prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.15-4.8/bin/x86_64-linux-
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endif
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# setup AUX globals
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AUX_SHLIB_SUFFIX := .so
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AUX_GLOBAL_ARFLAGS := cqsD
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AUX_STATIC_LIB_SUFFIX := .a
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# Load ever-lasting "indexed" version of AUX variant environment; it is treated as READ-ONLY from this
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# moment on.
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#
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# $(1) - variant
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# no return value
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define aux-variant-setup-paths
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$(eval AUX_OUT_ROOT_$(1) := $(PRODUCT_OUT)/aux/$(1)) \
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$(eval AUX_COMMON_OUT_ROOT_$(1) := $(AUX_OUT_ROOT_$(1))/common) \
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$(eval AUX_OUT_$(1) := $(AUX_OUT_ROOT_$(1))/$(AUX_OS_$(1))-$(AUX_ARCH_$(1))-$(AUX_CPU_$(1))) \
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$(eval AUX_OUT_INTERMEDIATES_$(1) := $(AUX_OUT_$(1))/obj) \
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$(eval AUX_OUT_COMMON_INTERMEDIATES_$(1) := $(AUX_COMMON_OUT_ROOT_$(1))/obj) \
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$(eval AUX_OUT_HEADERS_$(1) := $(AUX_OUT_INTERMEDIATES_$(1))/include) \
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$(eval AUX_OUT_NOTICE_FILES_$(1) := $(AUX_OUT_INTERMEDIATES_$(1))/NOTICE_FILES) \
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$(eval AUX_OUT_FAKE_$(1) := $(AUX_OUT_$(1))/fake_packages) \
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$(eval AUX_OUT_GEN_$(1) := $(AUX_OUT_$(1))/gen) \
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$(eval AUX_OUT_COMMON_GEN_$(1) := $(AUX_COMMON_OUT_ROOT_$(1))/gen) \
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$(eval AUX_OUT_EXECUTABLES_$(1) := $(AUX_OUT_$(1))/bin) \
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$(eval AUX_OUT_UNSTRIPPED_$(1) := $(AUX_OUT_$(1))/symbols)
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endef
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# Copy "indexed" AUX environment for given VARIANT into
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# volatile not-indexed set of variables for simplicity of access.
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# Injection of index support throughout the build system is suboptimal
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# hence volatile environment is constructed
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# Unlike HOST*, TARGET* variables, AUX* variables are NOT read-only, but their
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# indexed versions are.
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#
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# $(1) - variant
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# no return value
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define aux-variant-load-env
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$(eval AUX_OS_VARIANT:=$(1)) \
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$(eval AUX_OS:=$(AUX_OS_$(1))) \
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$(eval AUX_ARCH:=$(AUX_ARCH_$(1))) \
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$(eval AUX_SUBARCH:=$(AUX_SUBARCH_$(1))) \
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$(eval AUX_CPU:=$(AUX_CPU_$(1))) \
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$(eval AUX_OS_PATH:=$(AUX_OS_PATH_$(1))) \
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$(eval AUX_OUT_ROOT := $(AUX_OUT_ROOT_$(1))) \
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$(eval AUX_COMMON_OUT_ROOT := $(AUX_COMMON_OUT_ROOT_$(1))) \
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$(eval AUX_OUT := $(AUX_OUT_$(1))) \
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$(eval AUX_OUT_INTERMEDIATES := $(AUX_OUT_INTERMEDIATES_$(1))) \
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$(eval AUX_OUT_COMMON_INTERMEDIATES := $(AUX_OUT_COMMON_INTERMEDIATES_$(1))) \
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$(eval AUX_OUT_HEADERS := $(AUX_OUT_HEADERS_$(1))) \
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$(eval AUX_OUT_NOTICE_FILES := $(AUX_OUT_NOTICE_FILES_$(1))) \
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$(eval AUX_OUT_FAKE := $(AUX_OUT_FAKE_$(1))) \
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$(eval AUX_OUT_GEN := $(AUX_OUT_GEN_$(1))) \
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$(eval AUX_OUT_COMMON_GEN := $(AUX_OUT_COMMON_GEN_$(1))) \
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$(eval AUX_OUT_EXECUTABLES := $(AUX_OUT_EXECUTABLES_$(1))) \
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$(eval AUX_OUT_UNSTRIPPED := $(AUX_OUT_UNSTRIPPED_$(1)))
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endef
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# given a variant:path pair, load the variant conviguration with aux-variant-setup-paths from file
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# this is a build system extension mechainsm, since configuration typically resides in non-build
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# project space
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#
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# $(1) - variant:path pair
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# $(2) - file suffix
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# no return value
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define aux-variant-import-from-pair
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$(eval _pair := $(subst :, ,$(1))) \
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$(eval _name:=$(word 1,$(_pair))) \
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$(eval _path:=$(word 2,$(_pair))) \
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$(eval include $(_path)/$(_name)$(2)) \
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$(eval AUX_OS_VARIANT_LIST_$(AUX_OS_$(1)):=) \
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$(call aux-variant-setup-paths,$(_name)) \
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$(eval AUX_ALL_VARIANTS += $(_name)) \
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$(eval AUX_ALL_OSES := $(filter-out $(AUX_OS_$(_name)),$(AUX_ALL_OSES)) $(AUX_OS_$(_name))) \
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$(eval AUX_ALL_CPUS := $(filter-out $(AUX_CPU_$(_name)),$(AUX_ALL_CPUS)) $(AUX_CPU_$(_name))) \
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$(eval AUX_ALL_ARCHS := $(filter-out $(AUX_ARCH_$(_name)),$(AUX_ALL_ARCHS)) $(AUX_ARCH_$(_name))) \
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$(eval AUX_ALL_SUBARCHS := $(filter-out $(AUX_SUBARCH_$(_name)),$(AUX_ALL_SUBARCHS)) $(AUX_SUBARCH_$(_name)))
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endef
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# Load system configuration referenced by AUX variant config;
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# this is a build extension mechanism; typically system config
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# resides in a non-build projects;
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# system config may define new rules and globally visible BUILD*
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# includes to support project-specific build steps and toolchains
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# MAintains list of valiants that reference this os config in OS "indexed" var
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# this facilitates multivariant build of the OS (or whataver it is the name of common component these variants share)
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#
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# $(1) - variant
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# no return value
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define aux-import-os-config
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$(eval _aioc_os := $(AUX_OS_$(1))) \
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$(eval AUX_OS_PATH_$(1) := $(patsubst $(_aioc_os):%,%,$(filter $(_aioc_os):%,$(AUX_ALL_OS_PATHS)))) \
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$(eval _aioc_os_cfg := $(AUX_OS_PATH_$(1))/$(_aioc_os)$(os_sfx)) \
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$(if $(wildcard $(_aioc_os_cfg)),,$(error AUX '$(_aioc_os)' OS config file [$(notdir $(_aioc_os_cfg))] required by AUX variant '$(1)' does not exist)) \
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$(if $(filter $(_aioc_os),$(_os_list)),,$(eval include $(_aioc_os_cfg))) \
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$(eval AUX_OS_VARIANT_LIST_$(_aioc_os) += $(1)) \
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$(eval _os_list += $(_aioc_os))
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endef
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# make sure that AUX config variables are minimally sane;
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# as a bare minimum they must contain the vars described by aux_env
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# Generate error if requirement is not met.
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#
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#$(1) - variant
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# no return value
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define aux-variant-validate
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$(eval _all:=) \
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$(eval _req:=$(addsuffix _$(1),$(aux_env))) \
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$(foreach var,$(_req),$(eval _all += $(var))) \
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$(eval _missing := $(filter-out $(_all),$(_req))) \
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$(if $(_missing),$(error AUX variant $(1) must define vars: $(_missing)))
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endef
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AUX_ALL_VARIANTS :=
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AUX_ALL_OSES :=
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AUX_ALL_CPUS :=
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AUX_ALL_ARCHS :=
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AUX_ALL_SUBARCHS :=
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variant_sfx :=_aux_variant_config.mk
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os_sfx :=_aux_os_config.mk
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config_roots := $(wildcard device vendor)
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all_configs :=
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ifdef config_roots
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all_configs := $(sort $(shell find $(config_roots) -maxdepth 4 -name '*$(variant_sfx)' -o -name '*$(os_sfx)'))
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endif
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all_os_configs := $(filter %$(os_sfx),$(all_configs))
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all_variant_configs := $(filter %$(variant_sfx),$(all_configs))
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AUX_ALL_OS_PATHS := $(foreach f,$(all_os_configs),$(patsubst %$(os_sfx),%,$(notdir $(f))):$(patsubst %/,%,$(dir $(f))))
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AUX_ALL_OS_VARIANT_PATHS := $(foreach f,$(all_variant_configs),$(patsubst %$(variant_sfx),%,$(notdir $(f))):$(patsubst %/,%,$(dir $(f))))
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my_variant_pairs := $(foreach v,$(AUX_OS_VARIANT_LIST),$(filter $(v):%,$(AUX_ALL_OS_VARIANT_PATHS)))
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my_missing_variants := $(foreach v,$(AUX_OS_VARIANT_LIST),$(if $(filter $(v):%,$(AUX_ALL_OS_VARIANT_PATHS)),,$(v)))
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ifneq ($(strip $(my_missing_variants)),)
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$(error Don't know how to build variant(s): $(my_missing_variants))
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endif
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# mandatory variables
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aux_env := AUX_OS AUX_ARCH AUX_SUBARCH AUX_CPU
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$(foreach v,$(my_variant_pairs),$(if $(filter $(v),$(AUX_ALL_VARIANTS)),,$(call aux-variant-import-from-pair,$(v),$(variant_sfx))))
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ifdef AUX_ALL_VARIANTS
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_os_list :=
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$(foreach v,$(AUX_ALL_VARIANTS),\
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$(call aux-import-os-config,$(v)) \
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$(call aux-variant-validate,$(v)) \
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)
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endif
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INSTALLED_AUX_TARGETS :=
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droidcore: auxiliary
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